In constant evaluation, consistently handle const depending on non-const.

pkg/analyzer/test/generated/all_the_rest_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.all_the_rest_test;
 
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 8103 matching lines @@
   void setUp() {
     _referenceGraph = new DirectedGraph<ConstantEvaluationTarget>();
     _head = ElementFactory.topLevelVariableElement2("v1");
   }
   void test_visitSimpleIdentifier_const() {
     _visitNode(_makeTailVariable("v2", true));
     _assertOneArc(_tail);
   }
   void test_visitSimpleIdentifier_nonConst() {
     _visitNode(_makeTailVariable("v2", false));
-    _assertNoArcs();
+    _assertOneArc(_tail);
   }
   void test_visitSuperConstructorInvocation_const() {
     _visitNode(_makeTailSuperConstructorInvocation("A", true));
     _assertOneArc(_tail);
   }
   void test_visitSuperConstructorInvocation_nonConst() {
     _visitNode(_makeTailSuperConstructorInvocation("A", false));
-    _assertNoArcs();
+    _assertOneArc(_tail);
   }
   void test_visitSuperConstructorInvocation_unresolved() {
     SuperConstructorInvocation superConstructorInvocation =
         AstFactory.superConstructorInvocation();
     _visitNode(superConstructorInvocation);
     _assertNoArcs();
   }
   void _assertNoArcs() {
     Set<ConstantEvaluationTarget> tails = _referenceGraph.getTails(_head);
     expect(tails, hasLength(0));
@@ skipping 609 matching lines @@
     if (_expectedExternalScriptName == null) {
       expect(scriptSource, isNull, reason: "script $scriptIndex");
     } else {
       expect(scriptSource, isNotNull, reason: "script $scriptIndex");
       String actualExternalScriptName = scriptSource.shortName;
       expect(actualExternalScriptName, _expectedExternalScriptName,
           reason: "script $scriptIndex");
     }
   }
 }